CN204857628U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN204857628U CN204857628U CN201520536151.9U CN201520536151U CN204857628U CN 204857628 U CN204857628 U CN 204857628U CN 201520536151 U CN201520536151 U CN 201520536151U CN 204857628 U CN204857628 U CN 204857628U
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Abstract
The utility model discloses circuit breaker, including the casing with arrange that the casing is inside to be taken place to transship and take place the lever of corresponding action during short -circuit fault at circuit breaker in, lever pivotally connected to still includes solenoid inside the casing, solenoid's one end is connected with the wire, the wire is located the below of lever, the lever is equipped with the recess of dodging the wire towards wire one side. The utility model discloses a circuit breaker, through setting up the recess at the lever towards one side of wire, avoid the wire to take place the warpage under the effect of electronic repulsion after, lever when action, the wire does not take place the contact with the lever interferes, avoids the product mechanism to lose efficacy because of wire and lever take place to interfere, product long service life, breaking capacity is good, and is reliable and stable.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of circuit breaker.
Background technology
The performance requirement of existing market to circuit breaker is more and more higher, has more and more stricter standard to the breaking capacity of product, life-span, reliability, for the mechanism of performance to circuit breaker of improving product improves particularly important.Existing product lever construction there will not be exception when product normally uses, but once there is short circuit current or impulse current, wire, under the effect of electrodynamic repulsion force, warpage occurs, and can interfere, lever is misplaced with lever, and product construction lost efficacy.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of simple and compact for structure, circuit breaker stable and reliable for performance.
For achieving the above object, the utility model have employed following technical scheme:
A kind of circuit breaker, comprises housing 1 and the lever 2 that corresponding actions occurs when overload and short trouble occur circuit breaker being placed in housing 1 inside; It is inner that described lever 2 pivotable is connected to housing 1, and also comprise solenoid 3, one end of described solenoid 3 is connected with wire 4, and described wire 4 is positioned at the below of lever 2, and described lever 2 is provided with the groove 201 of dodging wire 4 towards wire 4 side.
Further, also comprise and being fixed in housing 1 and exposed handle 5 outside housing and the operating mechanism is connected with handle 5, fixed contact 11 and moving contact 10, described operating mechanism comprises U-shaped bar 6, touch pole 7 and unhook 8; Described fixed contact 11 is fixedly installed in housing 1, described touch pole 7 and 8 pivotables that break off relations are connected to enclosure interior, one end of unhook 8 is connected with lever 2 hasp, one end of described U-shaped bar 6 is connected with handle 5, the other end is connected with one end of touch pole 7, the other end of touch pole 7 is connected with moving contact 10, and the contact of moving contact 10 and the contact of fixed contact 11 are oppositely arranged; Described solenoid 3 is provided with push rod 31 towards the side of touch pole 7, and when short circuit, the push rod 31 of solenoid 3 one end drives touch pole 7 action, the contact separation of moving contact 10 and fixed contact 11, cuts off circuit.
Further, also comprise bimetal leaf 9, one end of described bimetal leaf 9 is fixed on housing 1 inside, the other end is freely movable, and towards lever 2, bimetal leaf 9 heated bending activated lever 2 rotates, when overload occurs circuit, bimetal leaf 9 activated lever 2, lever 28 to be triped cut-out circuit with breaking off relations.
Further, described lever 2 is provided with the interactional shake-up projection 23 with bimetal leaf 9 towards the side of bimetal leaf 9.
Further, one end of described unhook 8 is provided with the buckle projection 81 be connected with lever 2 hasp, and described lever 2 is provided with the snap-fit grooves 202 matched with buckle projection 81.
Further, described lever 2 comprises fixed arm 21 and motion arm 22, the middle part of lever 2 is provided with lever fixed leg 24, it is inner that lever 2 is connected to housing 1 by lever fixed leg 24 pivotable, described groove 201 is located at the lower surface of motion arm 22, described motion arm 22 protrudes and is provided with buckle arm 221, and described snap-fit grooves 202 is located at the side of buckle arm 221.
Further, also comprise back-moving spring 12, one end and the housing 1 of described back-moving spring 12 are fixed, and the other end stretches to lever 2 and is connected with lever 2, provides elastic force for lever 2 resets; Described lever 2 is provided with the pockets 203 be connected with back-moving spring 12, the side of pockets 203 is provided with spacing block set 211, described buckle arm 221 is provided with to opposite side extension and extends buckle arm 221a, the middle part of described back-moving spring 12 is placed in pockets 203, and the below of the extension buckle arm 221a of buckle arm 221 is stretched in the end of the other end of back-moving spring 12.
Further, described wire 4 is minimum apart from the distance of the bottom of groove 201 should be 4.4 millimeters, and described groove 201 makes wire 4 after the effect generation warpage of electrodynamic repulsion force, does not contact during lever 2 action with lever 2.
A kind of circuit breaker, comprises housing 1, is placed in short current protective mechanism and the overload protecting mechanism of housing 1 inside; Described overload protecting mechanism comprises solenoid 3, moving contact 10 and fixed contact 11, it is inner that described solenoid 3 and fixed contact 11 are fixed on housing 1, described moving contact 10 and fixed contact 11 contact are oppositely arranged, described solenoid 3 is provided with push rod 31 towards one end of moving contact 10, when being short-circuited, solenoid 3 push rod 31 drives the contact separation of moving contact 10 and fixed contact 11; Described short current protective mechanism comprises bimetal leaf 9 and lever 2, it is inner that described lever 2 pivotable is connected to housing 1, one end of described bimetal leaf 9 is fixed on housing 1 inside, the other end is freely movable towards lever 2, when the overload occurs, bimetal leaf 9 heated bending activated lever 2 rotates the contact separation driving moving contact 10 and fixed contact 11, cuts off circuit; One end of described solenoid 3 is connected with wire 4, described wire 4 is positioned at the below of lever 2, described lever 2 is provided with groove 201 towards wire 4 side, and described groove 201 makes wire 4 after the effect generation warpage of electrodynamic repulsion force, does not contact during lever 2 action with lever 2.
Further, also comprise and being fixed in housing 1 and exposed handle 5 outside housing and the operating mechanism that is connected with handle 5, described operating mechanism comprises U-shaped bar 6, touch pole 7, unhook 8; Described touch pole 7 and 8 pivotables that break off relations are connected to enclosure interior, one end of unhook 8 is connected with lever 2 hasp, one end of described U-shaped bar 6 is connected with handle 5, the other end is connected with one end of touch pole 7, described moving contact 10 is connected with one end of touch pole 7, and handle 5 can drive touch pole 7 action to make the closing of contact of moving contact 10 and fixed contact 11 connect circuit; When there is overload in circuit, bimetal leaf 9 activated lever 2, lever 28 to be triped cut-out circuit with breaking off relations; When short circuit, the push rod 31 of solenoid 3 one end is directly pushed touch pole 7 open and lever 28 to be triped cut-out circuit with breaking off relations; Described unhook 8 is positioned at the top of touch pole 7, and described touch pole 7 is provided with and drives lever 2 and the 8 touch pole projections 71 of triping that break off relations, and described unhook 8 is connected by protruding 71 buckles of touch pole with touch pole 7.
Circuit breaker of the present utility model, by arranging groove at lever towards the side of wire, after avoiding wire, under the effect of electrodynamic repulsion force, warpage occurs, during lever action, wire does not come in contact interference with lever, avoids product construction to interfere and lost efficacy, long product lifecycle because of wire and lever, breaking capacity is good, reliable and stable.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the utility model circuit breaker;
Fig. 2 is the left view of the utility model Fig. 1 along A-A section;
Fig. 3 is the right view of the utility model Fig. 1 along A-A section;
Fig. 4 is the partial internal structure schematic diagram of the utility model circuit breaker;
Fig. 5 is the structural representation of the utility model enclosure interior solenoid, wire and lever;
Fig. 6 is the structural representation of the reverse side of the utility model lever;
Fig. 7 is the structural representation in the front of the utility model lever;
Fig. 8 is the structural representation that the utility model lever is connected with unhook hasp.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 to 8 goes out, further illustrate the embodiment of circuit breaker of the present utility model.Circuit breaker of the present utility model is not limited to the description of following examples.
As shown in Figure 1, the internal structure schematic diagram of circuit breaker.The utility model circuit breaker, comprise housing 1, be placed in short current protective mechanism and the overload protecting mechanism of housing 1 inside, described overload protecting mechanism comprises solenoid 3, moving contact 10 and fixed contact 11, it is inner that described solenoid 3 and fixed contact 11 are fixed on housing 1, described moving contact 10 and fixed contact 11 contact are oppositely arranged, described solenoid 3 is provided with push rod 31 towards one end of moving contact 10, when being short-circuited, solenoid 3 push rod 31 drives the contact separation of moving contact 10 and fixed contact 11, cuts off circuit; Described short current protective mechanism comprises bimetal leaf 9 and lever 2; it is inner that described lever 2 pivotable is connected to housing 1; one end of described bimetal leaf 9 is fixed on housing 1 inside; the other end is freely movable towards lever 2; when the overload occurs; bimetal leaf 9 heated bending activated lever 2 rotates the contact separation driving moving contact 10 and fixed contact 11, cuts off circuit.
Particularly, described bimetal leaf 9 and lever 2 are arranged at housing 1 inside left, and solenoid 3 is located in the middle part of housing 1, and fixed contact 11 is fixedly installed on the right side of housing; Also comprise the arc control device be located at immediately below solenoid 3, be also respectively equipped with two binding posts at the edge, the left and right sides of housing 1.
As shown in Figure 1, the utility model circuit breaker also comprises and being fixed in housing 1 and exposed handle 5 outside housing and the operating mechanism that is connected with handle 5, and described operating mechanism comprises U-shaped bar 6, touch pole 7, unhook 8; Described touch pole 7 and 8 pivotables that break off relations are connected to enclosure interior, one end of unhook 8 is connected with lever 2 hasp, one end of described U-shaped bar 6 is connected with handle 5, the other end is connected with one end of touch pole 7, described moving contact 10 is connected with one end of touch pole 7, and handle 5 can drive touch pole 7 action to make the closing of contact of moving contact 10 and fixed contact 11 connect circuit; When there is overload in circuit, bimetal leaf 9 activated lever 2, lever 28 to be triped cut-out circuit with breaking off relations; When short circuit, the push rod 31 of solenoid 3 one end is directly pushed touch pole 7 open and lever 28 to be triped cut-out circuit with breaking off relations.
As shown in figures 1-8, circuit breaker of the present utility model, comprise the lever 2 that corresponding actions occurs when overload and short trouble occur circuit breaker being placed in housing 1 inside, it is inner that described lever 2 pivotable is connected to housing 1, also comprise solenoid 3, one end of described solenoid 3 is connected with wire 4, and described wire 4 is positioned at the below of lever 2, and described lever 2 is provided with the groove 201 of dodging wire 4 towards wire 4 side.Circuit breaker of the present utility model, by arranging groove at lever towards the side of wire, after avoiding wire, under the effect of electrodynamic repulsion force, warpage occurs, during lever action, wire does not come in contact interference with lever, avoids product construction to interfere and lost efficacy, long product lifecycle because of wire and lever, breaking capacity is good, reliable and stable.
As in Figure 2-4, particularly, when not arranging groove 201, retaining between lever 2 and wire and necessarily dodge space, when there is warpage under the effect of wire described in wire 4 at electrodynamic repulsion force, can interfere with lever 2, upwards back down lever 2 on the one hand, the rotation of lever 2 is restricted on the other hand, causes circuit breaker not thread off, and circuit breaker lost efficacy.After wire 4, under the effect of electrodynamic repulsion force, warpage occurs, the height be bent upwards is 4.4 millimeters to the maximum, and therefore, wire 4 is minimum apart from the distance of the bottom of groove 201 should be 4.4 millimeters.
As shown in Figure 1,5, one end of described bimetal leaf 9 is fixed on housing 1 inside, and the other end is freely movable towards lever 2, bimetal leaf 9 heated bending activated lever 2 rotates, when overload occurs circuit, bimetal leaf 9 activated lever 2, lever 28 to be triped cut-out circuit with breaking off relations.Bimetal leaf 9 makes lever 2 rotate by activated lever 2, lever 2 is driven to trip to cut off circuit with dropout 8, when circuit overloads and short circuit, final is all triped by lever 2 and dropout 8 to cut off whole power supply circuits, the total design of circuit breaker is ingenious, element utilization rate is high, saves inner space.Described lever 2 is provided with the interactional shake-up projection 23 with bimetal leaf 9 towards the side of bimetal leaf 9.After bimetal leaf 9 heated bending, the shake-up projection 23 of touching lever 2, makes lever 2 rotate, and lever 2 is triped with unhook 8, cuts off circuit.Also comprise back-moving spring 12, one end and the housing 1 of described back-moving spring 12 are fixed, and the other end stretches to lever 2 and is connected with lever 2, provides elastic force for lever 2 resets.
As shown in Figure 6,7, described lever 2 comprises fixed arm 21 and motion arm 22, the middle part of lever 2 is provided with lever fixed leg 24, it is inner that lever 2 is connected to housing 1 by lever fixed leg 24 pivotable, described groove 201 is located at the lower surface of motion arm 22, described motion arm 22 protrudes and is provided with buckle arm 221, and described snap-fit grooves 202 is located at the side of buckle arm 221; Described lever 2 is provided with the pockets 203 be connected with back-moving spring 12, and the side of pockets 203 is provided with spacing block set 211, and described buckle arm 221 is provided with to opposite side extension and extends buckle arm 221a.The middle part of described back-moving spring 12 is placed in pockets 203, and the below of the extension buckle arm 221a of buckle arm 221 is stretched in the end of the other end of back-moving spring 12.One end and the housing 1 of back-moving spring 12 are fixed, the below of the extension buckle arm 221a of buckle arm 221 is stretched in the end of the other end of back-moving spring 12, the middle part of back-moving spring 12 is stuck in the pockets 203 of lever 2, and it is spacing that spacing block set 211 carries out stop from opposite side.
As shown in Fig. 1,8, one end of described unhook 8 is provided with the buckle projection 81 be connected with lever 2 hasp, and described lever 2 is provided with the snap-fit grooves 202 matched with buckle projection 81.Break off relations 8 by arranging buckle projection 81, lever 2 arranges snap-fit grooves 202, breaks off relations 8 together with lever 2 is cooperatively interacted snapped over by buckle protruding 81 and snap-fit grooves 202.Described unhook 8 is positioned at the top of touch pole 7, and described touch pole 7 is provided with and drives lever 2 and the 8 touch pole projections 71 of triping that break off relations, and described unhook 8 is connected by protruding 71 buckles of touch pole with touch pole 7.When circuit breaker is short-circuited, the push rod 31 of solenoid 3 is retracted, and push rod 31 promotes touch pole 7 and rotates, and touch pole 7 drives unhook 8 to rotate by touch pole protruding 71 simultaneously, and lever 2 is triped with unhook 8, and breaker open operation cuts off circuit.
The following describes the operation principle of the utility model circuit breaker: after circuit breaker handle closes a floodgate, handle 5 drives touch pole 7 action, the closing of contact of moving contact 10 and fixed contact 11, circuit ON.When circuit breaker is short-circuited, the push rod 31 of solenoid 3 is retracted, and push rod 31 promotes touch pole 7 and rotates, touch pole 7 drives unhook 8 to rotate by touch pole protruding 71 simultaneously, and lever 2 is triped with unhook 8, breaker open operation, the contact separation of moving contact 10 and fixed contact 11, cuts off circuit; When overload occurs circuit breaker, bimetal leaf 9 heated bending activated lever 2 rotates, and lever 2 is triped with unhook 8, breaker open operation, the contact separation of moving contact 10 and fixed contact 11, cuts off circuit.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. a circuit breaker, comprise housing (1) and be placed in the inner lever (2) that corresponding actions occurs when overload and short trouble occur circuit breaker of housing (1), it is characterized in that: it is inner that described lever (2) pivotable is connected to housing (1), also comprise solenoid (3), one end of described solenoid (3) is connected with wire (4), described wire (4) is positioned at the below of lever (2), and described lever (2) is provided with the groove (201) of dodging wire (4) towards wire (4) side.
2. circuit breaker according to claim 1, it is characterized in that: also comprise and being fixed in housing (1) and exposed handle (5) outside housing and the operating mechanism be connected with handle (5), fixed contact (11) and moving contact (10), described operating mechanism comprises U-shaped bar (6), touch pole (7) and unhook (8); Described fixed contact (11) is fixedly installed in housing (1), described touch pole (7) and (8) pivotable that breaks off relations are connected to enclosure interior, one end of unhook (8) is connected with lever (2) hasp, one end of described U-shaped bar (6) is connected with handle (5), the other end is connected with the one end of touch pole (7), the other end of touch pole (7) is connected with moving contact (10), and the contact of moving contact (10) and the contact of fixed contact (11) are oppositely arranged; Described solenoid (3) is provided with push rod (31) towards the side of touch pole (7), when short circuit, the push rod (31) of solenoid (3) one end drives touch pole (7) action, the contact separation of moving contact (10) and fixed contact (11), cuts off circuit.
3. circuit breaker according to claim 2, it is characterized in that: also comprise bimetal leaf (9), one end of described bimetal leaf (9) is fixed on housing (1) inside, the other end is freely movable towards lever (2), bimetal leaf (9) heated bending activated lever (2) rotates, when there is overload in circuit, bimetal leaf (9) activated lever (2), lever (2) to be triped cut-out circuit with break off relations (8).
4. circuit breaker according to claim 3, is characterized in that: described lever (2) is provided with the interactional shake-up projection (23) with bimetal leaf (9) towards the side of bimetal leaf (9).
5. circuit breaker according to claim 2, it is characterized in that: one end of described unhook (8) is provided with the buckle projection (81) be connected with lever (2) hasp, and described lever (2) is provided with the snap-fit grooves (202) matched with buckle projection (81).
6. circuit breaker according to claim 5, it is characterized in that: described lever (2) comprises fixed arm (21) and motion arm (22), the middle part of lever (2) is provided with lever fixed leg (24), it is inner that lever (2) is connected to housing (1) by lever fixed leg (24) pivotable, described groove (201) is located at the lower surface of motion arm (22), described motion arm (22) protrudes and is provided with buckle arm (221), and described snap-fit grooves (202) is located at the side of buckle arm (221).
7. circuit breaker according to claim 6, it is characterized in that: also comprise back-moving spring (12), one end of described back-moving spring (12) and housing (1) are fixed, the other end stretches to lever (2) and is connected with lever (2), provides elastic force for lever (2) resets; Described lever (2) is provided with the pockets (203) be connected with back-moving spring (12), the side of pockets (203) is provided with spacing block set (211), described buckle arm (221) is provided with to opposite side extension and extends buckle arm (221a), the middle part of described back-moving spring (12) is placed in pockets (203), and the below of the extension buckle arm (221a) of buckle arm (221) is stretched in the end of the other end of back-moving spring (12).
8. circuit breaker according to claim 1, it is characterized in that: the distance of the bottom of described wire (4) distance groove (201) is minimum should be 4.4 millimeters, described groove (201) makes wire (4) after the effect generation warpage of electrodynamic repulsion force, does not contact during lever (2) action with lever (2).
9. a circuit breaker, comprise housing (1), be placed in the inner short current protective mechanism of housing (1) and overload protecting mechanism, it is characterized in that: described overload protecting mechanism comprises solenoid (3), moving contact (10) and fixed contact (11), it is inner that described solenoid (3) and fixed contact (11) are fixed on housing (1), described moving contact (10) and fixed contact (11) contact are oppositely arranged, described solenoid (3) is provided with push rod (31) towards one end of moving contact (10), when being short-circuited, solenoid (3) push rod (31) drives the contact separation of moving contact (10) and fixed contact (11), described short current protective mechanism comprises bimetal leaf (9) and lever (2), it is inner that described lever (2) pivotable is connected to housing (1), one end of described bimetal leaf (9) is fixed on housing (1) inside, the other end is freely movable towards lever (2), when the overload occurs, bimetal leaf (9) heated bending activated lever (2) rotates the contact separation driving moving contact (10) and fixed contact (11), cuts off circuit, one end of described solenoid (3) is connected with wire (4), described wire (4) is positioned at the below of lever (2), described lever (2) is provided with groove (201) towards wire (4) side, described groove (201) makes wire (4) after the effect generation warpage of electrodynamic repulsion force, does not contact during lever (2) action with lever (2).
10. circuit breaker according to claim 9, it is characterized in that: also comprise and being fixed in housing (1) and exposed handle (5) outside housing and the operating mechanism that is connected with handle (5), described operating mechanism comprises U-shaped bar (6), touch pole (7), breaks off relations (8); Described touch pole (7) and (8) pivotable that breaks off relations are connected to enclosure interior, one end of unhook (8) is connected with lever (2) hasp, one end of described U-shaped bar (6) is connected with handle (5), the other end is connected with the one end of touch pole (7), described moving contact (10) is connected with one end of touch pole (7), and handle (5) can drive touch pole (7) action to make the closing of contact of moving contact (10) and fixed contact (11) connect circuit; When there is overload in circuit, bimetal leaf (9) activated lever (2), lever (2) to be triped cut-out circuit with break off relations (8); When short circuit, the push rod (31) of solenoid (3) one end is directly pushed touch pole (7) open and is triped cut-out circuit in lever (2) and break off relations (8); Described unhook (8) is positioned at the top of touch pole (7), described touch pole (7) is provided with the touch pole projection (71) driving lever (2) to trip with break off relations (8), and described unhook (8) is connected by touch pole projection (71) buckle with touch pole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536151.9U CN204857628U (en) | 2015-07-23 | 2015-07-23 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536151.9U CN204857628U (en) | 2015-07-23 | 2015-07-23 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857628U true CN204857628U (en) | 2015-12-09 |
Family
ID=54748155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536151.9U Active CN204857628U (en) | 2015-07-23 | 2015-07-23 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427511A (en) * | 2017-08-22 | 2019-03-05 | 浙江正泰电器股份有限公司 | Breaker |
-
2015
- 2015-07-23 CN CN201520536151.9U patent/CN204857628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427511A (en) * | 2017-08-22 | 2019-03-05 | 浙江正泰电器股份有限公司 | Breaker |
| CN109427511B (en) * | 2017-08-22 | 2024-03-26 | 浙江正泰电器股份有限公司 | Circuit breaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |